-- captions by vitac -- www.vitac.com hello everyone. i'm fredricka whitfield. here are the top stories we're following in the newsroom. heavy-duty charges leaked

against the man who leaked top secret information. we have the latest on edward snowd snowden. the judge in the george zimmerman murder trial makes a crucial ruling. testimony from crucial expert witness also not be allowed. when twa flight 800 crashed in 1986, it was ruled an accident. i'm tell you why some are saying the jet may have been brought down deliberately. let's start with the george zimmerman case in florida. a judge just issued a ruling this morning that could change the course of this trial. she says testimony from two experts who analyzed voices screaming on the 911 calls cannot be used. george howell joins me live. what does this all moon? >> it comes down to this. the methodology, the methods used by tom owen and dr. allan reich and the science.

is it science university accepted. we're talking about the 911 audio clip. a lot of people called 11 the night of february 26, 2012. there's one call in particular that's been highly scrutinized where you hear screaming in the background. you hear someone screaming "help." was it george zimmerman or was it trayvon martin? let's listen to that tape. >> does he look hurt to you? >> i can't see him. i don't want to go out there. i don't know what's going on. they're sending. >> help! >> you think he's yelling help? >> yes. >> so the defense wants to prove that's george zimmerman screaming for help, screaming for his life. the prosecution instead wants to show that zimmerman was the aggressor in this case and, in fact, it was trayvon martin screaming for help. they brought their own experts in. they brought tom owen in. tom was initially hired by the orlando sentinel. he went back where he had a

method and took small clips of that audio, looped them together and compared the scream they heard to a scream test of george zimmerman. in his opinion he was able to rule out george zimmerman. also, dr. allan wright, another witness for the prosecution, he amplified the audio. he said because of the high pitch, it's likely a voice still being developed, likely o that of a younger person, likely trayvon martin. the defense, they brought in their own witnesses, their own experts. i want you to hear dr. john peter french. he is an audiologist who said this wouldn't even be scrutinized, he wouldn't even examine the tape. listen. >> my view in this case is that that recording isn't even remotely suitable for speaking comparison purposes. if it had been submitted to my lab just for that by prosecution

agency, it wouldn't have even got to first base. >> wouldn't have gotten to first base with him. >> that's interesting. the judge said it's one thing to have voice analysis of a spoken word. it's another thing to have analysis of a scream. but this is a blow, say some, to the prosecution. >> absolutely. now the prosecution, they cannot rule out it might have been george zimmerman screaming for help. we had cnn legal analyst mark nejame give his opinion about why this is such a bad ruling for the prosecution. let's listen. >> what the state was trying to get in is their witness who ended up having a financial, vested interest in the method that he used, because he gets a commission on it, but basically needs 16 seconds of tape, and all they had was seven seconds. he thought, well, i'll just loop it. so he looped it twice to get a larger segment and everybody has basically concurred that was

somewhat preposterous. >> nejame explaining the method used by tom owen saying it wouldn't be university accepted by science, something that would not be heard in this trial. it is a blow to the prosecution. >> we did see in front of the judge that testimony can come from those who know the voice of martin -- >> the witness ks come in and give their opinion. we'll still hear that audio, but now we can't hear that expert testimony. >> opening statements beginning on monday. >> i'll be there in sanford monday. >> our thanks so much, george howell. appreciate it that. the man who admitted to leaking top secret details about nsa surveillance has now been charged with espionage. those charges against edward snowden were just unsealed today. according to "the washington post" the u.s. is asking hong kong to detain him. dan lothian joining me live from washington. dan, what's the latest on the efforts to have him detained while in hong kong?

>> reporter: a u.s. official telling cnn the state department would be selling legal paperwork to the u.s. consulate in hong kong. that paperwork would have to be turned over to hong kong officials and ultimately get to a judge who would issue a local arrest warrant. the question, though, remains whether this process has completely clad out, whether the judge has gotten those documents and issued that warrant we simply don't know. what is clear here is this is sort of the first legal move in trying to get snowden back here to the u.s. and into court. at least one prominent attorney in the u.s., allan dershowitz, believes the federal government has already made a big mistake. >> i think it's a dumb decision by the justice department to charge him with espionage. that's a political crime under the expedition treaty we have with hong kong. it gives hong kong an excuse to say we don't have to expedite him. they should have indicted him

only for theft and conversion of property, then hong kong would have to comply with the expedition treaty and turn him over. of course, hanging over all of this is china. hong kong, as you know, is a chinese territory. so at any point beijing could step in and block an expedition from taking place. so we do know all of the various steps that need to take place here, but unclear how it will all play out. >> interesting. then we heard from another voice, from wikileaks founder julian assange, he's being held while in great britain thanks to an embassy kind enough to hold him. he has a statement showing that he is in great support of edward snowden. no surprise there though. >> reporter: no surprise there at all. he was supposed to deliver a speech this morning, but according to wikileaks, they decided to postpone that speech for security reasons. we did take a look at the transcript of what he was to

deliver and he talked about how snowden was essentially being intimidated or these charges were meant to intimidate any countries that might be willing to help snowden out. he also said this is a time for supporters of snowden to really push hard in an effort to find a place for him to find asylum. we've heard snowden mention iceland as a possibility, and there's a businessman from iceland who has talked about having private jets at the ready to take him there if, in fact, he wants to go there, but no indication at this point that that is what he plans to do, but there are these charges now. so sort of the ball -- the legal ball is rolling as we wait to find out how the u.s. government will actually find snowden and then get him back here. >> all right. fascinating stuff. thanks so much. dan lothian at the white house. this very frightening moment for a woman who is now in critical condition after a tiger clamped its jaws on her head. the attack happened at an exotic

animal rescue center in indiana. police say the woman was cleaning the tiger's cage when it escaped its holding area. authorities say its door was not properly shut. the tiger let the woman go after the center's director sprayed the cat in the face with a hose and lured it away with food. very good news about the little girl who had a lung transplant recently. according to her family, sarah mern hand is out of a coma and responsive. the 10-year-old received new lungs just last week after her parents won a court battle allowing children to receive adult lungs. her surgery lasted six hours and included resizing the lunges from a grownup. here is a look at what's trending right now. shortly after celebrity cook paula deen apologizes for using a racial epithet, she loses her job at food network. they decided not to renew her

contract which runs out at the end of the month. if you think the price of coffee is too high at starbucks, get ready, it's about to get a bit higher. starting next week the coffee chain is raising prices on some of its drinks, a latte, for example, will be around a dime more depending on where you live. parts of calgary, canada, still under water today. the flooding has killed at least two people in alberta. now authorities are looking for a third possible victim. 85,000 people have begun evacuating across the province. when twa flight 800 crashed off long island, it was ruled an accident. i'll tell you why some former investigators don't agree with that finding. and this man is trying to outdo himself. i talked to the tightrope walker who plans to cross the grand canyon tomorrow. that's not the scariest part. what is? well, that's coming up. hi, i'm terry and i have diabetic nerve pain.

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that goes for coca-cola, and everything else with calories. finding a solution will take all of us. but at coca-cola, we know when people come together, good things happen. to learn more, visit coke.com/comingtogether now the case involving new england patriots star aaron hernandez. police are investigating the murder of a 27-year-old man whose body was found less than a mile from hernandez's home. hernandez has not been charged in nan's death. hernandez's house has been surrounded, however, by reporters waiting for comment. cnn's alina cho is there with

more. >> thank you very much, aaron. >> reporter: this is aaron hernandez, august 2012, in the glow of signing a five-year contract extension with the new england patriots worth as much as $40 million, nearly $500,000 per game. >> all ki do is play my heart out for them, make the right decisions and live like a patriot. >> reporter: that was ten months ago. this is now. the 23-year-old patriots' tight end is trailed by the media wherever he goes, leaving his lawyer's office on friday, coming home. an o.j.-simpson-like helicopter chase on thursday, followed by this exchange at a gas station. >> can you tell us anything you want to say? what happened on monday night? >> reporter: investigators are looking for clues in the mysterious death of 27-year-old oden lloyd whose body was found in the woods less than a mile in hernandez's home, about an hour outside boston. police are not calls hernandez a suspect, but investigators have searched his home.

lloyd's sister confirms the two were friends and went to a boston nightclub together friday night. olivia thibea rufrnlthsu says there was a deeper connection, lloyd's girlfriend and hernandez's fiancee are sisters. >> he was a very great guy. what could he have done to anger anybody to do that. >> reporter: hernandez's attorney says neither he or his client will have any comment at this time. >> alina cho joining us live now. we also know he has had a bit of trouble in the past. what can you tell us about that and if there are any connections he here. >> reporter: we don't know about any connections. i can tell you there was a civil lawsuit filed that stems from an incident at a miami nightclub back in february. according to court documents, hernandez got into a fight with a man, allegedly shot him. that man ultimately lost his right eye as a result.

what's interesting about this, though, is at the time he went to police, did not name names, certainly did not name hernandez's name and there were never any charges filed. there was another incident much earlier in 2007 in gainesville, two men were shot. hernandez was a student at the university of florida at the time. again in this case he was brought in for questioning very briefly by police, fred. in this case there were never any charges filed. >> no investigators coming and going from his home at this juncture? >> reporter: no. what's interesting about this, fred, is that the information over the past 24 hours has pretty much dried up. so that has largely left us what what we like to call house watch here, outside hernandez's home in massachusetts. last we saw within the past hour or so a silver car carrying two women left. they picked up the mail.

within the past couple minutes they came back with what appeared to be lunch. but other than that, there hasn't been much activity. there certainly has been no sign of aaron hernandez who we believe is still inside the home behind me and remains in seclusion. >> alina cho, thank you so much. the nsa tira, the alphabet soup is taking its toll on the president's approval rating. hear just how deep the plunge goes. president's approval ratin. hear just how deep the plunge goes.

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from ben ghanzi to the irs to the nsa, the white house has had its hands full of controversy. president obama may not have weathered the controversy too well. paul steinhauser has more on that. >> a good way to gauge how the president is doing is how he's faring in the pools.

our poll indicated the president's approval rating was down eight points from 53% in may to 45% as of last week. our poll is one of six non-partisan live operator national surveys conducted in the past two weeks since the nsa's massive government surveillance program first started making headlines. add them altogether in our cnn poll of polls, and americans are divided with 47% saying they approve and 48% giving him a thumbs down. the numbers are giving late night talk show hosts plenty to play with. >> president obama's approval rating has dropped eight points over the past month, down to 45%, his lowest in more than a year and a half. obama is not letting it get him down, he's vowing to find out whose approval he's lost, track them down using phones and e-mail and personally win them back. >> remember, polls are a snapshot of how people feel right now.

people change their minds and polls can go up and down, fred. >> thanks so much. so true, paul. so chief political analyst gloria borger weighed in on what the president needs to do now. she wrote in a column for cnn.com saying this, quote, the president has rightly called for a public debate about the proper balance between national security and privacy, but the debate can't happen without him. in fact, he needs to lead it. that's what presidents are supposed to do when the country is having a national conversation, end quote. that from gloria borger. i asked gloria about what the president's next step should be. >> i think he's going to have to say or do a lot more about this. it's very clear that the public is concerned about it, although if you look at the polls, fredicka, you know a majority of people say that if it's to stop terrorism, they can understand why there is a certain amount of surveillance. however, younger voters, we saw his poll numbers drop

precipitously, like 17 points with younger voters and that's really his base. what the president is doing, he met with his privacy board to push for more declassification of these matters. he wants to kind of lift the veil for the american public about how the secret court makes decisions when it does issue warrants to listen in son conversations when there's proof that you should. i think what he's trying to do is say, look, we're not eavesdropping on your telephone calls. and when there is a process, congress knows about it and this court is something that really pays an awful lot of attention toour civil liberties. >> is it something else -- i wonder if the president is waking up in the mornings lately and asking how is it government intrusion is driving conversations, especially when a senator -- you remind us in your

article, obama railed against president bush's warrantless taps. has the president lost control of his own presidency or is it the issue that things look different ones that you're in the white house? >> i don't think he's lost control. i think he might wake up in the morning scratching his head and say how is it that these problems are coming on my lap right now. after all, don't forget where the president comes from. he's a constitutional scholar who has been a very strong civil libertarian. suddenly the conversations we're having in the country are about drones, are about leak investigations, are about surveillance, are about the irs targeting -- and this is not the conversation he intended to be having in his second term. >> there was some movement this week in the senate to quell conservative anger over immigration reform and those plans. so by proposing more efforts at border security, how important were those moves? what do you see as the outlook for immigration reform?

>> look, the only way you are going to get a certain group of republicans to sign on to this immigration reform effort is border security, and that's because that's what people care about. democrats care about it, too. but we did some polling this week which showed that by almost a two-to-one margin, people believe the first thing you have to do is get control of the borders. so what republicans did this week is say, look, we're going to spend a lot of money and put a lot of boots on the ground to make sure that before we start this path to citizenship which, by the way, doesn't occur overnight. 13 years is the path to citizenship, so it's not exactly short. but before we even get there, we are going to guarantee the american people that we are making progress at the border. >> thanks so much gloria borger a. new documentary claims that twa crash that killed more than

200 people was no accident. coming up, i'll take to the man who led the fbi investigation. and nik wallenda is set to walk across the grand canyon tomorrow. i'll show you how he's preparing for his more daring -- maybe this is the most daring high wire stunt he's ever done. [ female announcer ] think all pads are the same? don't. [ woman ] the technology in these pads... best creation ever! [ female announcer ] always infinity. invented with mind-blowing foam so incredibly thin, you'll be surprised it's up to 55% more absorbent.

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crashed off long island in 1996 killing everyone on board. the official cause of the crash was listed as an accident involving faulty wiring. renee marsh looks at new claims the plane may have been deliberately brought down and the real cause may have been covered up. >> it blew up in the air and we saw two fireballs go down into the water. >> reporter: it was 1996, twa flight 800 exploded mid air off the coast of long island, new york. all 230 people on board the 747 died. after a four-year investigation, the national transportation safety board ruled a short-circuit near the fuel tank caused the explosion. now a twist in the case. out of scores of accident investigators involved, six now say in a new documentary the agency's findings were wrong. >> the primary conclusion was

the explosive forces came from outside the airplane, not the center fuel tank. >> the agenda was that this is an accident, make it so. >> the now retired investigators say they have new evidence proving a missile caused one of the country's most deadly plane crashes. that evidence includes faa radar data, explosive residue in multiple locations of the plane and witness accounts of a rising streak of light through the sky. the documentary's producers and the former investigators suggest a cia, fbi and ntsb coverup. >> they had some political agenda to show this was an accident irregardless of what the evidence was. >> john golia was one of the five ntsb board members assigned to the case. >> i would never be part of any coverup. you have to take all the pieces and look at them as a whole. the sequencing report that told how the airplane came apart,

none of it supports a missile. >> the ntsb collected over 17,000 pages of documents. all of those items are available to the public. >> reporter: at the time ntsb investigators considered and reject admission sill brought the plane down. they insist the streak witnesses saw was burning fuel from the plane. wednesday morning former investigators filed a petition with the ntsb to reopen the case. renee marsh, cnn, washington. >> will there be a new investigation. james hall strom led the criminal investigation into the crash for the fbi, he was the former assistant director of the fbi. he's joining me now. good to see you. >> good to see you. >> you have said your investigation was exhaustive. the conclusion was there was no criminal intervention. what led to that conclusion at the time? interviews? photographs? what? >> first off, the fbi was there

because of jurisdiction, crime aboard aircraft or destruction of aircraft. for the public's sense, the ntsb was there for other reasons for the crash, pilot error, weather, mechanical, et cetera, et cetera. the fbi operates under the rules of federal procedure, rules of evidence, chain of custody. we can't have all these people -- most of these investigators were low-level people, probably good people, but they were not the decision makers on the technology. they were not the metal urgists, not the people capable of making those types of decisions. the fellow that was talking first that was putting the plane back together was basically an ntsb bus accident investigator. so you're talking about people that are not in my view, not qualified to make any assessment of this. when we had the foremost experts in the world on our team looking

at this. we had the national laboratories. we had people from universities. we had our own fbi laboratory. we had the ntsb laboratory, the faa laboratory. we had -- we spent days and months dredging to get the plane off the bottom of the ocean. we looked at every piece of this airplane multiple times. three times minimum, looking for all the different scars and pitting and different characteristics in the metal of a bomb or a missile, any kind of a missile inside or outside. >> you saw no scars, no pitting, nothing that would indicate there was any kind of missile contact or anything that would pierce that plane, and that's why you stand behind that conclusion that there could not have been any kind of missile that would have brought it down? >> well, not just that. we had a lot of agents working this. consider this, the night that this happened, the next day we

had hundreds of agents. what just happened is all of long island shore facing south and the ocean out there became a crime scene, a potential crime scene. so there was literally thousands of people that have to be interviewed immediately in the criminal investigation. all these things put together including overhead satellites, there was no end to what we did -- the fbi can't be in a position of claiming something was terrorism if there's no proof or with 20% of the airplane in the ocean. that's where we found ourselves. >> you talk about some of the ntsb folks involved in the investigation really were not equipped, perhaps, to be part of the investigation at the level the fbi was. among those, the ntsb accident investigator hank hughes was among those who said the interviews of some of the eyewitness accounts were kind of blushed aside and there were a

number of interviews of people who said they saw a flash of light, a stream of light shortly before that plane went down and those accounts were not taken into consideration. what did you find from those interviews and those witnesses? >> of course they were. the reason they were interviewed by the fbi, ntsb came with three people and we had to interview thousands of people in a potential criminal investigation. we interviewed all of them, multiple times in some cases. we took it extremely serious. one of the first press conferences i said there's the potentiality this is a missile. >> what was wrong with the stories? once you did follow-up with some of those eyewitness accounts, what was it that wasn't there that kind of reafter firnld their thoughts? >> fredicka, eyewitness testimony is not really evidence, but it's helpful. in this case in particular, a very high percentage of the eyewitnesss on the shore heard -- looked up at the sky when they heard the explosion.

the lawyers office six, the speed of sound, the speed of light, those witness, those high percentage of witnesses i'm talking about, looked up there somewhere between 32 seconds and 56 seconds after the plane blew up. so the large extent of all the witnesses saw an event after the plane blew up. and there were a few other witnesses that were looking up and happened to see it when it happened. but that's not evidence. you don't go into court with evidence like this. the evidence is the actual metal itself and the fingerprint of the criminality. >> it must bother you that this documentary concludes that the investigation needs to be reopened, that there are some former investigators who say the investigation needs to be reopened because the technology is different today and the conclusion might be different, too. >> i'm not demeaning the investigators.

i'm saying they weren't the scientists. the scientists, the people in the laboratory, we hired independent metal urgists. we looked at the radar every which way but south and west. it was overwhelming the work that was done on that. i would have bet my meager government check that first couple weeks that it was an act of terrorism. why would i make up some story that it wasn't? i would never go along with some story like that. i couldn't keep a thousand fbi agents quiet if i wanted to. >> james kallstrom, thanks for joining us. this is a tough situation because so many investigators say they've built great relationships with the family members of the victims. >> i feel bad for the family members having to listen to all this bs. >> we appreciate your thoughts and time. you think it's okay to give retailers your zip code when you make a purchase? brian todd will explain why it

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silence may be golden for some, but for millions of lebron james twitter followers, he's been too quiet for too long. joe carter is here with the bleacher report to tell us lebron followers are now smiling again. >> yeah, fred, lebron james, 8.7 million twitter followers out there. before yesterday, fans had not seen a tweet for him since april 20th. he said he gave up twitter for about two months to focus on win ag second nba championship. obviously mission accomplished on thursday night. as promised, lebron james broke his twitter silence. he actually did it with a video laying on his couch directed to all the haters out there. >> man, i don't know what to say. i'm a champion, two-time, two

rings. [ bleep ] stink, don't it? >> a little pompous, but hey, he's earned the right to gloat for about 15 seconds. he is on top of the nba world right now. he's won two titles, two finals mvps. he's only 28 years old. it's incredible how social media can connect sports stars with fans. russell westbrook, obviously a star player for oklahoma city was recently contacted bay fan named charlie on his facebook page. charlie asked westbrook if he would help him propose to his girlfriend rachel, he did it via twitter. he said rachel, chuck loves you, he wants to know if you'll spend the rest of your life watching thunder games. she said yes. san francisco quarterback colin kaepernick was invited to the giants game to throw out the first pitch. i'm thinking when the giants saw him throw this ball, they were

like, wow, i wish we would have drafted this guy. this pitch clocked at 87 miles per hour. he could have played professional baseball. the cubs drafted him in 2009. he declined the offer. after a super bowl appearance last season, it looks like he has a very bright future ahead of him in the nfl. that's your bleacher report update. back to you, fredicka. >> thanks, joe. appreciate it. he's the dare devil that walked across niagara falls on a tightrope. now you won't believe what jaw-dropping stunt nik wallenda is daring to do next. that company, the united states postal service® works for thousands of home businesses. because at usps.com® you can pay, print and have your packages picked up for free. i can even drop off free boxes. i wear a lot of hats. well, technically i wear one.

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your trip begins at michigan.org. nik wallenda holds seven world records for his daring exploits on the high wire. tomorrow millions of people will watch on live television as he tries something never done before. he'll walk on a wire stretched across the grand canyon. remember this? last year nik wallenda high above niagara falls. he becomes the first to cross from the u.s. to canada on a high wire, and he does it live on national television. now he wants to top that with a walk over the grand canyon. >> no one in the world has ever done that. i try to find a unique twist on everything i do and try to find places that no one in the world

has ever walked before. this is truly a dream come true. >> he'll be 1,500 feet high, higher than the empire state building with nothing but a wire between him and the ground far below. no net, no tether. wallenda has been training for years at his home in sarasota, florida. not even tropical storm andrea kept him off the wire in early june. why does he do it? this is something i've done since i was 2 years old. it truly is my passion. >> reporter: he's the seventh generation of the famous wallenda family to do high wire stunts. the family was known for its seven-person pyramid. in 1962 in detroit something went horribly wrong. two members of the family fell to their death and a third was paralyzed. when nik wallenda was a teenager, he helped the family create the same stunt at the same detroit arena. this time success.

>> the flying wallendas! >> reporter: nik is dedicating his upcoming walk across the grand canyon do his grade grand father, carl wallenda. i asked him what's driving him to do this. >> it seems you've far extended all expectations of your family. you said your great grandfather is one you are honoring, carl wallenda. but do you think your family thought you would take it to these heights, so to speak? >> i don't know if they thought i would or not. it's just the way i've thought since i was a child. i believe that no matter what you do, you should do it to the best of your ability. i believe in doing things big. i am doing everything i can to honor my great grandfather, carl wallenda and really put our name back on the map. >> why is this something you're looking forward to? >> because my family has done this for seven generations and 200 years. i'm carrying on a legacy.

hard for you to relate to. my grade grandfather said life is on the wire, everything else is just waiting. for our family that'strue. >> how do you prepare yourself, days prior to the walk? >> it's a lot of mental prep. i've also trained very hard in my hometown in sarasota, florida, where we put up a cable about 1,000 feet long, but rigged identical to the way that it's rigged over the canyon. when you're walking at a height greater than the empire state building, it can play tricks on your mind. it's important i'm always in control of those thoughts. one of the challenges is all the media that wants to talk about the doom and gloom. this is real. this is untethered. it's life or death, this crossing. it's important i'm mentally in control. as the media wants to play up, it's so dangerous, you lose your life, what ab your family, i have to filter that out. >> what are you thinking about when you are walking?

>> i'm really putting myself back on the training grounds. as i was training in sarasota, >> mental prep for the huge challenge. what does he do in the moments just before a big high wire walk? >> i say a prayer, give a hug and kiss to my family and tell them i'll see them in a few minutes. that's it. >> daddy sgg ois going off to w. we'll watch wallenda's tight wire attempt. we wish him well. if a sales clerk asks for your zip code after swiping your card, do you need to comply? do you need to do it? why you may want to think twice before you say yes. dad. how did you get here?

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you'll agree it happens a lot when you're shopping. you use a credit card to pay and the sales clerk asks, what's your zip code? but if you casually give up that information, you may want to rethink that from now on. here's cnn's brian todd. >> reporter: joanna davis says the situation was so absurd, she laughed out loud in her car afterward. she tried to return an item at an ulta beauty store in sacramento. they asked for her zip code, which she didn't want to give them. what happened when you refused to give them your zip code? >> when i refused to give them my zip code, they called the manager. she wanted it and said she couldn't go forward with providing me a refund or store credit or whatever. >> reporter: davis says it led to an ugly confrontation in the store. for many of us, it doesn't get that far. we're often asked for our zip codes when making a purchase and think nothing of giving it. but if a sales clerk sees your name while swiping your card and gets your zip code --

>> stores can take this information to a data broker and ask them to match up the name with the zip code in order to get the person's home address. they might be able to get e-mail and phone number as well. >> reporter: cliff hushnagle, who teaches law at university of berkeley says they may take that information and target it with other ad campaigns, even share it with other retailers. they can find out your income, whether you've gone through bankruptcy. the practice is not different than what targeted groups use to get people's zip codes. but they often don't use names with addresses. retail experts often do. there is now a lawsuit in many states as to whether the practice is legal or should be. retailers are usually playing within the rules when they go to data brokers to get added information about you. a worst-case scenario, he says, is the possibility that some employees might move outside the lines. >> employees of a store might decide to stalk you or might

simply decide you're good looking and to show up at your house or call you. >> reporter: it's joanna davis' own sense of possibilities that raises her guard when a clerk asks for a zip code. >> i am a domestic violence survivor, so i highly regard my privacy, and whenever there are those reward programs, i do give a fake birthday, and, you know, in this case, i could have given them a fake zip code. but why should i have to do that? >> reporter: davis' story first appeared on forbes.com. as for that beauty products chain, ulta, where she had that experience, an official told us it's disappointing to know they've lost a valuable customer and the service was less than stellar. the company says it still collects zip codes, but only for its shopper's club. we have to say many retailers ask for zip codes simply to understand where their visitors are coming from so they can make decisions about how to use advertising resources. bryan todd, cnn, washington.

much more "newsroom" coming up.

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use more gadgets at the start of a flight. hear which ones. i'm fredricka whitfield. i'll see you in the newsroom one hour from now. first, stocks and likely your entire savings take a tumble this week. much more on "your money" with christine romans. a potentially lame duck fed chief speaks and a bull market is stopped in its tracks. hello, everyone. i'm christine romans. this is "your money." in two days the dow lost 559 points. thursday's loss was the worst of 2013 so far. but at the start of the year, the dow was up more than 2,000 points. it wasn't just stocks. take a look, though, at gold. it tanked as well. now less than $1300 an ounce. it was above 1800 less than a year ago. oil prices dropped as well, plus bond yields surged and the u.s. dollar jumped. this was not just the stock market tanking. every market moving, every market responding to the